{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-48551 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-48551 is a medium-severity vulnerability in Nagios Core, published on 12 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-48551 and fix it if it is affected.\n\nWhat it is: CVE-2026-48551 is a medium-severity vulnerability in Nagios Core, published on 12 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-48551 in the wild and no public exploit code.\n\nAffected product: Nagios Core. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-48551/ (Markdown: https://insights.sbomify.com/CVE-2026-48551/index.md)","id":"CVE-2026-48551","markdown":"https://insights.sbomify.com/CVE-2026-48551/index.md","name":"CVE-2026-48551","record":{"aliases":["DEBIAN-CVE-2026-48551","GHSA-4f3c-j3m4-8h7h","UBUNTU-CVE-2026-48551"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Nagios monitoring system","requires_auth":"none","summary":"Attackers can bypass CSRF protection to execute commands as authorized users via malicious links in Nagios Core and XI.","user_interaction":"required","vuln_class":"csrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":6.1,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N","version":"4.0"},"cwes":[{"id":"CWE-352","name":"Cross-Site Request Forgery"}],"description":"Nagios Core before 4.5.14 and Nagios XI before 2026R1.7 contain a cross-site request forgery protection bypass via a self-supplied double-submit cookie. An attacker can supply matching cookie and request parameter values to bypass CSRF protection, enabling unauthenticated attackers to run commands as authorized users via malicious links.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Nagios Core / XI CSRF Protection Bypass via Double-Submit Cookie","id":"CVE-2026-48551","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"csrf","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Nagios Core / XI DOM-based XSS via jsonquery.js","id":"CVE-2026-48552"},"packages":[],"prev":{"headline":"Nagios Core / XI cmd.cgi Reflected XSS via NagFormId Parameter","id":"CVE-2026-48550"},"products":["Nagios Core","Nagios XI"],"published":"2026-08-12","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-14","vendors":["Nagios Enterprises, LLC."]},"summary":"Attackers can bypass CSRF protection to execute commands as authorized users via malicious links in Nagios Core and XI.","url":"https://insights.sbomify.com/CVE-2026-48551/"}